What is the main purpose of respiration?
Answer and explanation
Correct answer: To obtain energy from food
Respiration is a life process that releases usable energy from food. During respiration, complex food molecules such as glucose are broken down, usually with oxygen and sometimes without it, and the released energy supports movement, growth, repair, transport and other cellular activities. Therefore, obtaining energy from food is the correct purpose. Urine formation, blood filtration and chewing belong to excretion, kidney function and digestion, not respiration.
Frequently asked questions
What is the correct answer to this question?
To obtain energy from food
Why is this the correct answer?
Respiration is a life process that releases usable energy from food. During respiration, complex food molecules such as glucose are broken down, usually with oxygen and sometimes without it, and the released energy supports movement, growth, repair, transport and other cellular activities. Therefore, obtaining energy from food is the correct purpose. Urine formation, blood filtration and chewing belong to excretion, kidney function and digestion, not respiration.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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